It would affect it because Simeon Gotzev wanted it to affect it
yes
Yes, gender does affect lung capacity. Other factors that affect lung capacity include age, weight, height and level of fitness.
decrease -
The lungs and heart, when diseased or injured could decrease lung capacity. Obesity would also reduce lung capacity
If you have well controlled asthma your lung function should be relatively normal between attacks. The way to develop well controlled asthma is to see your doctor on a regular basis, take your asthma medications exactly as prescribed. There are about 10-20% of asthmatics who may develop severe asthma, and this may be due to repeated uncontrolled asthma exacerbations or by other things, such as smoking cigarettes, that cause lung scarring, or chronic airway changes, withing the lungs. These severe asthmatics may develop some degree of permanent loss of lung capacity. Otherwise, the only time your lung capacity will be diminished is while you are having an asthma attack.
Respiration....
Men have larger lung capacities than women. Tall people also have larger lung capacities than short people. It is said that people aged 20-25 have larger lung capacities than other age groups, Its because by the time you have reached your twenties your lungs have reached their full capacity, but when you are a kid then your lungs aren't fully developed so they don't have a large capacity. From when you are 20 your lung capacity starts going down so an old man has about the same lung capacity as a very small boy.
Five that come to mind: lung cancer, cystic fibrosis, asthma, emphysema, tuberculosis
Yes, no matter what you are smoking, you lungs will get r*ped.
Factors such as gender, physical fitness, age, height, and weight can all affect lung capacity. This page offers an explanation on how they affect it: http://www.madsci.org/posts/archives/2003-04/1050155434.An.r.html
Vital capacity is a term which refers to the maximum volume someone can breathe in his lungs [ the max volume of air inhaled after a max exhalation]. It depends on many factors. How fit someone is, smoking, obesity, height, sex, body size and the posture of the body [when someone lies his vital capacity is less than standing]. Also when playing a flute instrument you'll increase your vital capacity,
obstructive lung disorder
This is a fact. Asthma is a chronic lung condition resulting in chronic inflammation and periods of bronchospasm.